Is there a relationship between the hemispheres and the occurrence of day and night? If the Earth were not tilted on its axis, would Earth still experience day and night?
Is it possible to infer whether other planets in our Solar System experience day and night? How do you know? How might their day and night be different from the day and night we experience on Earth.
If the Earth did not rotate on its axis, would Earth still experience day and night? How do you know?
Why do different cities across the world experience day and night at different times?